Japan has apologized for the comfort women, it has paid reparations, and it's simply tired of this issue being brought up and over. It's no different than blaming the ill-deeds of the Kim family on all Koreans, as they're also Korean.

Modern Japan is not Imperial Japan, and this constant harassment on an issue that Japan has repeatedly apologized for is as unwarranted as placing the blame for North Korean crimes against humanity upon all Koreans.

This idea that Japan has not owned up to its history is nationalist fantasy designed to enrage people.